Among the XLR chassis connectors in the Audio Effetti catalogue are the DL Series connectors, with universal metal housing and solder cup terminals and a common D-shape housing for male and female types. The metal housing provides RF protection. They are available in 3, 4, 5, 6 and 7- pin configurations, with silver or gold plated contacts and with metal housing in nickel or black plated finish. These are UL listed components.